IL98397A - Computed tomography system with a copyable focal point - Google Patents
Computed tomography system with a copyable focal pointInfo
- Publication number
- IL98397A IL98397A IL9839791A IL9839791A IL98397A IL 98397 A IL98397 A IL 98397A IL 9839791 A IL9839791 A IL 9839791A IL 9839791 A IL9839791 A IL 9839791A IL 98397 A IL98397 A IL 98397A
- Authority
- IL
- Israel
- Prior art keywords
- gantry
- projection
- rays
- ray source
- ray
- Prior art date
Links
- 238000002591 computed tomography Methods 0.000 title description 3
- 238000005070 sampling Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 17
- 238000003384 imaging method Methods 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 2
- 101100478234 Caenorhabditis elegans spr-4 gene Proteins 0.000 claims 1
- 230000033001 locomotion Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 101150018711 AASS gene Proteins 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 101100366466 Caenorhabditis elegans spo-11 gene Proteins 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013170 computed tomography imaging Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4021—Arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Theoretical Computer Science (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Image Analysis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- X-Ray Techniques (AREA)
- Image Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/540,995 US5173852A (en) | 1990-06-20 | 1990-06-20 | Computed tomography system with translatable focal spot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL98397A0 IL98397A0 (en) | 1992-07-15 |
| IL98397A true IL98397A (en) | 1995-10-31 |
Family
ID=24157763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL9839791A IL98397A (en) | 1990-06-20 | 1991-06-06 | Computed tomography system with a copyable focal point |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5173852A (fr) |
| EP (1) | EP0467532B1 (fr) |
| JP (1) | JP2758515B2 (fr) |
| CA (1) | CA2042230A1 (fr) |
| DE (1) | DE69114932T2 (fr) |
| IL (1) | IL98397A (fr) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5457321A (en) * | 1990-02-20 | 1995-10-10 | Kabushiki Kaisha Toshiba | Spect apparatus utilizing fan-parallel data conversion |
| US5361291A (en) * | 1991-11-20 | 1994-11-01 | General Electric Company | Deconvolution filter for CT system |
| EP0553911A1 (fr) * | 1992-01-27 | 1993-08-04 | Koninklijke Philips Electronics N.V. | Analyse radiologique à sensibilité locale |
| US5265142A (en) * | 1992-05-08 | 1993-11-23 | General Electric Company | Image reconstruction technique for a computer tomography system |
| US5566220A (en) * | 1992-12-04 | 1996-10-15 | Kabushiki Kaisha Toshiba | X-ray computerized tomography apparatus |
| JPH0810251A (ja) * | 1994-06-28 | 1996-01-16 | Hitachi Medical Corp | Ｘ線断層撮影方法および装置 |
| US6047040A (en) * | 1994-07-29 | 2000-04-04 | Hu; Hui | Detector signal integration in volumetric CT scanner detector arrays |
| JP2760781B2 (ja) * | 1996-01-31 | 1998-06-04 | 株式会社東芝 | Ｘ線断層撮影装置 |
| DE19851556C2 (de) * | 1998-11-09 | 2000-11-23 | Siemens Ag | CT-Gerät |
| DE10048775B4 (de) * | 2000-09-29 | 2006-02-02 | Siemens Ag | Röntgen-Computertomographieeinrichtung |
| US6963631B2 (en) * | 2002-10-25 | 2005-11-08 | Koninklijke Philips Electronics N.V. | Dynamic detector interlacing for computed tomography |
| US7333587B2 (en) * | 2004-02-27 | 2008-02-19 | General Electric Company | Method and system for imaging using multiple offset X-ray emission points |
| JP4977007B2 (ja) | 2004-03-17 | 2012-07-18 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 複数の焦点取得方法及び装置 |
| CN101035464A (zh) * | 2004-10-06 | 2007-09-12 | 皇家飞利浦电子股份有限公司 | 计算层析成像方法 |
| US7062006B1 (en) * | 2005-01-19 | 2006-06-13 | The Board Of Trustees Of The Leland Stanford Junior University | Computed tomography with increased field of view |
| WO2007140093A1 (fr) | 2006-05-26 | 2007-12-06 | Koninklijke Philips Electronics, N.V. | Reconstruction de système d'imagerie multitube |
| US7616731B2 (en) * | 2006-08-30 | 2009-11-10 | General Electric Company | Acquisition and reconstruction of projection data using a stationary CT geometry |
| US7706499B2 (en) * | 2006-08-30 | 2010-04-27 | General Electric Company | Acquisition and reconstruction of projection data using a stationary CT geometry |
| US7835486B2 (en) | 2006-08-30 | 2010-11-16 | General Electric Company | Acquisition and reconstruction of projection data using a stationary CT geometry |
| US7746974B2 (en) * | 2006-09-29 | 2010-06-29 | Siemens Medical Solutions Usa, Inc. | Radiographic and fluoroscopic CT imaging |
| US8175218B2 (en) * | 2007-10-29 | 2012-05-08 | Kabushiki Kaisha Toshiba | Interpolation interlacing based data upsampling algorithm for cone-beam x-ray CT flying focal spot projection data |
| US7929659B2 (en) * | 2008-07-24 | 2011-04-19 | General Electric Company | System and method for generating computed tomography images |
| WO2010015951A1 (fr) * | 2008-08-04 | 2010-02-11 | Koninklijke Philips Electronics N.V. | Acquisition de données |
| JP2010035812A (ja) * | 2008-08-05 | 2010-02-18 | Toshiba Corp | Ｘ線コンピュータ断層撮影装置 |
| US8571171B2 (en) * | 2008-12-05 | 2013-10-29 | Helmholtz Zentrum Munchen Deutsches Forschungszentrum Fur Gesundheit Und Umwelt (Gmbh) | Reconstructing a tomographic image with reduced artifacts |
| EP2430638B1 (fr) | 2009-05-12 | 2018-08-08 | Koninklijke Philips N.V. | Source de rayons x dotee d'une pluralite d'emetteurs d'electrons et procede d'utilisation |
| FR2947658B1 (fr) * | 2009-07-03 | 2011-07-29 | Norbert Beyrard | Procede et dispositif d'imagerie a rayons x a traitement tridimentionnel |
| JP5677738B2 (ja) * | 2009-12-24 | 2015-02-25 | 株式会社東芝 | Ｘ線コンピュータ断層撮影装置 |
| DE11173533T8 (de) * | 2010-07-14 | 2013-04-25 | Xcounter Ab | Computertomografie-Abtastsystem und Verfahren |
| JP6346284B2 (ja) * | 2014-07-18 | 2018-06-20 | 株式会社日立製作所 | Ｘ線ｃｔ装置、および、ｘ線ｃｔ画像の撮影方法 |
| WO2016017534A1 (fr) | 2014-07-28 | 2016-02-04 | 株式会社日立メディコ | Dispositif de capture d'images par rayons x et procédé de reconstruction d'image |
| JP6345053B2 (ja) * | 2014-09-12 | 2018-06-20 | キヤノン株式会社 | 断層画像撮影システム |
| US10076292B2 (en) | 2015-10-16 | 2018-09-18 | General Electric Company | Systems and methods for x-ray tomography having retrograde focal positioning |
| KR20190033621A (ko) * | 2016-08-11 | 2019-03-29 | 프리스매틱 센서즈 에이비 | 컴퓨터 단층촬영을 위한 데이터 획득 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4149079A (en) * | 1976-07-14 | 1979-04-10 | Elscint, Ltd. | Method of and means for scanning a body to enable a cross-section thereof to be reconstructed |
| GB1595805A (en) * | 1977-02-24 | 1981-08-19 | Emi Ltd | Radiography |
| CA1104727A (fr) * | 1977-08-18 | 1981-07-07 | Godfrey N. Hounsfield | Explorateur ct a rotation uniquement avec deviation du faisceau |
| US4412289A (en) * | 1980-02-13 | 1983-10-25 | The President Of Tokyo Institute Of Technology | Reconstruction method of X-ray computed tomography |
| DE3227625A1 (de) * | 1982-07-23 | 1984-01-26 | Siemens AG, 1000 Berlin und 8000 München | Computertomograph |
| IL72276A (en) * | 1983-07-28 | 1988-01-31 | Elscint Ltd | Computerized tomographic system with improved resolution |
| US4637040A (en) * | 1983-07-28 | 1987-01-13 | Elscint, Ltd. | Plural source computerized tomography device with improved resolution |
| JPS6146136A (ja) * | 1984-08-10 | 1986-03-06 | 日本電気株式会社 | 太陽光発電システム |
| DE3817148C2 (de) * | 1988-04-18 | 1996-12-05 | Siemens Ag | Computertomograph mit periodischer Fokusablenkung |
| JPH0223946A (ja) * | 1988-07-14 | 1990-01-26 | Toshiba Corp | Ｘ線ｃｔ装置 |
-
1990
- 1990-06-20 US US07/540,995 patent/US5173852A/en not_active Expired - Lifetime
-
1991
- 1991-05-09 CA CA002042230A patent/CA2042230A1/fr not_active Abandoned
- 1991-06-06 IL IL9839791A patent/IL98397A/en not_active IP Right Cessation
- 1991-06-17 JP JP3170389A patent/JP2758515B2/ja not_active Expired - Fee Related
- 1991-06-19 EP EP91305527A patent/EP0467532B1/fr not_active Expired - Lifetime
- 1991-06-19 DE DE69114932T patent/DE69114932T2/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2758515B2 (ja) | 1998-05-28 |
| DE69114932D1 (de) | 1996-01-11 |
| EP0467532A3 (en) | 1992-11-04 |
| DE69114932T2 (de) | 1996-07-25 |
| CA2042230A1 (fr) | 1991-12-21 |
| IL98397A0 (en) | 1992-07-15 |
| US5173852A (en) | 1992-12-22 |
| EP0467532A2 (fr) | 1992-01-22 |
| EP0467532B1 (fr) | 1995-11-29 |
| JPH04231940A (ja) | 1992-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IL98397A (en) | Computed tomography system with a copyable focal point | |
| EP0569238B1 (fr) | Méthode de reconstruction d'image pour un appareil de tomographie par ordinateur | |
| US4672649A (en) | Three dimensional scanned projection radiography using high speed computed tomographic scanning system | |
| EP0426464B1 (fr) | Méthode de reconstruction d'image tomographique par calculateur pour balayage spiral | |
| US4736396A (en) | Tomosynthesis using high speed CT scanning system | |
| US5291402A (en) | Helical scanning computed tomography apparatus | |
| US5090037A (en) | Helical scanning computed tomography with tracking x-ray source | |
| US6639965B1 (en) | Methods and apparatus for cardiac imaging with conventional computed tomography | |
| US6370218B1 (en) | Methods and systems for determining x-ray beam position in multi-slice computed tomography scanners | |
| US5073911A (en) | Computerized tomographic apparatus | |
| US6937690B2 (en) | Method for computed tomography of a periodically moving object to be examined, and a CT unit for carrying out this method | |
| JP3637074B2 (ja) | ヘリカルスキャン方式のコンピュータ断層撮影装置 | |
| US20050265523A1 (en) | C-arm device with adjustable detector offset for cone beam imaging involving partial circle scan trajectories | |
| EP0520778B1 (fr) | Reconstruction de tomogrammes à l'aide des signaux provenant des plans divergents de faisceaux | |
| JP3682308B2 (ja) | 計算機式断層写真装置及び撮像されるべき物体の像を発生する方法 | |
| US4573179A (en) | Scanned projection radiography using high speed computed tomographic scanning system | |
| US5706326A (en) | Systems and methods of determining focal spot x-axis position from projection data | |
| US7154986B2 (en) | Tilted gantry helical cone-beam Feldkamp reconstruction for multislice CT | |
| US5400379A (en) | Multi-slice x-ray CT using a detector mask | |
| US5022060A (en) | High acquisition rate tomography by translational step rotation | |
| EP1095619B1 (fr) | Reconstruction hybride pour imagerie cardiaque à pas élevé, multicouche, hélicoidale | |
| US5224136A (en) | Helical scanning computed tomography apparatus with constrained tracking of the x-ray source | |
| EP0430506B1 (fr) | Réduction des artifacts de translation d'un patient en imagerie tomographique | |
| US5974110A (en) | Helical reconstruction algorithm | |
| US5541970A (en) | Image reconstruction for a CT system implementing a four fan beam helical scan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| MM9K | Patent not in force due to non-payment of renewal fees |